EP 1638092 A2 20060322 - Method of recording information on optical recording medium, and information recording and reproducing apparatus
Title (en)
Method of recording information on optical recording medium, and information recording and reproducing apparatus
Title (de)
Verfahren zur Aufzeichnung von Informationen auf einem optischen Aufzeichnungsmedium, und Informationsaufzeichnungs- und -Wiedergabegerät
Title (fr)
Procédé d'enregistrement d'informations sur un support d'enregistrement optique, et appareil d'enregistrement et de reproduction d'informations
Publication
Application
Priority
JP 2004274098 A 20040921
Abstract (en)
An information recording method enables the precise formation of a recording mark on a recording layer having a high light transmittance such as an L1 layer of a double-layered optical recording medium. The information recording method uses the following recording strategy. A laser beam is pulse-modulated so as to create a pulse series including a write pulse of a recording power and a cooling pulse of a base power. Data to be recorded is modulated to have a length of a recording mark along a track of the recording layer. At the same time, the length of the recording mark is made to correspond to an integral multiple nT of T where T is one clock cycle. An nT recording mark corresponding to nT is recorded by using the same number of write pulses and cooling pulses when n is 4 or larger. Moreover, an average width AveTc for a single cooling pulse width Tc is set to satisfy: 1.0 < AveTc/T < 1.6 and a total pulse width SumTc of the used cooling pulses is set to satisfy: 0.5 ‰¤ SumTc/nT ‰¤ 0.8.
IPC 8 full level
G11B 7/006 (2006.01)
CPC (source: EP US)
G11B 7/0062 (2013.01 - EP US); G11B 7/24038 (2013.01 - EP US); G11B 2007/0013 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
EP 1638092 A2 20060322; EP 1638092 A3 20070124; EP 1638092 B1 20080528; AT E397265 T1 20080615; CN 100559479 C 20091111; CN 1767015 A 20060503; DE 602005007128 D1 20080710; JP 2006092609 A 20060406; US 2006067197 A1 20060330; US 7471606 B2 20081230
DOCDB simple family (application)
EP 05020491 A 20050920; AT 05020491 T 20050920; CN 200510099925 A 20050908; DE 602005007128 T 20050920; JP 2004274098 A 20040921; US 20982605 A 20050824